There's not an easy way to figure out, and I'm unfamiliar with Macs, but I have found an adobe air installer through Finder that is version 23.
I tried to work on this but it seems I'm unable to make the game works on last OSX version : El Capitan.
As a result I removed the mac version on steam and itch.io, please contact me on benjamin.soule [at] gmail [dot] com for a refund.
no need! I also have a PC and I've been able to play it just fine on that machine!
